class_docstr: Simple scheduler that just runs trials in submission order.
code: def __init__(self):
      super().__init__()
  
imports: from typing import Dict, Optional, TYPE_CHECKING
  from ray.air._internal.usage import tag_scheduler
  from ray.tune.result import DEFAULT_METRIC
  from ray.tune.experiment import Trial
  from ray.util.annotations import DeveloperAPI, PublicAPI
label_desc: Use image node_id 1 to create a new FIFOScheduler object from inherited base classes: TrialScheduler with example: obj = FIFOScheduler()